<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>笑话</title>
  <link rel="stylesheet" href="./style.css">
</head>

<body>
  <div class="container">
    <h1>Dont joke</h1>
    <div id="joke" class="joke">笑话真好象</div>
    <button id="jokeBtn" class="btn">点我随机笑话</button>
  </div>
</body>
<script src="/script.js"></script>

</html>